import { Actions } from "./state/interfaces";
/**
 * Splits raw terminal input into individual key sequences.
 *
 * - Terminals batch rapid input (mouse wheel, held keys, pastes) into one
 *   stdin chunk; each contained sequence must be handled separately.
 *
 * @param data - Raw input chunk from stdin.
 * @returns Array of individual key sequences.
 */
export declare function splitKeys(data: string): string[];
/**
 * less's kent translation (getcc_repl, command.c:1172): the terminal's
 * keypad-Enter sequence (terminfo kent, \eOM on xterm) reads as a
 * newline at getcc - commands and prompts alike - unless a lesskey
 * file mapped it. error()'s get_return reads RAW getchr instead, so
 * at a message the ESC ungets (dismissing) and the re-formed \eOM
 * becomes the NEXT command's newline: dismiss AND move.
 */
export declare function kentToNewline(key: string): string;
/** The terminal's keypad-Enter sequence, empty when it has none. */
export declare const kentSequence: () => string;
/**
 * Maps a key press to a corresponding pager action.
 *
 * @param key - A single-character string from user input.
 * @returns The corresponding `Actions` type if defined, otherwise `undefined`.
 */
/**
 * less's A_PREFIX test (cmd_decode, decode.c): the bytes in hand are a
 * proper prefix of some entry in the command table, so the command is
 * incomplete and the loop reads another character.
 *
 * less derives it from the TABLE. Ours hardcoded three characters
 * (`^X`, `:`, `^O`), so every other multi-key binding was
 * unreachable - `ZZ` is `'Z','Z',0, A_QUIT` (decode.c:236), and with
 * `Z` absent from that list its second key never had a chance.
 */
export declare function isKeyPrefix(keys: string): boolean;
export declare function getAction(key: string): Actions | undefined;
/** Drops the cached table, for a TERM change between sessions. */
export declare function resetBoundKeys(): void;
/**
 * Resolves the bytes of an unbound sequence like less reprocessing
 * them through cmd_decode: a completed tail binding comes out as a
 * replayable key (ESC j still scrolls, a digit still counts), an
 * unmatched buffer as null - ONE invalid command, bell and count
 * dropped. less keeps waiting on a trailing partial match; sequences
 * arrive whole here, so a dangling prefix simply drops.
 */
export declare function tailCascade(stream: string): Array<string | null>;